1. What is the pH of a 0.0442 M solution of methylamine if enough hydrochloric acid is added to bring the chloride concentration to 0.0442?
2. What is the Ka value if a 0.0350M solution of an unknown weak acid yields a pH of 5.34?
1. What is the pH of a 0.0442 M solution of methylamine if enough hydrochloric acid...
4. What is the pH of a 0.0442 M solution of methylamine if enough hydrochloric acid is added to bring the chloride concentration to 0.0442? pKb = 3.19
1) Determine the pH of a 0.0785 M unknown weak base solution. Kb of the unknown weak base is 4.7 x 10−6. 2) An unknown weak acid solution with a concentration of 0.0850 M has a pH of 4.35. What is the Ka for this weak acid? 3) What is the pH of a 0.0380 M solution of HNO2? (Use your workbook to find Ka) 4) An unknown weak base solution with a concentration of 0.187 M has a pH...
please explain your answer
3. An aqueous solution of 0.204 M methylamine, CH3NH2, is hydrochloric acid, HCL. The base ionization constant for methylamine is 4.4 x 10-1. What is the pH of the mixture when 12.50 ml of the methylamine solution has been delivered by the buret? added by buret to 25.00 mL of 0.102 M 50 grade paints] SHOW YOUR WORK AND/OR REASONING
An aqueous solution contains 0.380 M methylamine (CH3NH2). How many mL of 0.211 M hydrochloric acid would have to be added to 250 mL of this solution in order to prepare a buffer with a pH of 10.800. mL -------------
A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the hydrogen ion concentration of this solution? Answer in scientific notation and be sure to include your units. (Scientific notation: Ex. 2.4 x 103 = 2.4E3) HA(aq) + H+(aq) + A'(aq) Answer: A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the value of the acid dissociation constant, Ka? Answer in scientific notation. Answer: A...
What is the pH of a 0.14 M solution of methylammonium chloride, CH NH, CI? What is the concentration of methylamine in the solution? Ks (methylamine) - 4.4 x 10-4 pH- Concentration =
Dissociation Ethanoic Acid Hydrochloric Acid Nitric Acid Phosphoric Acid Universal solution Universal chart (enter label here) pH Meter Dissociation 1- Follow the dissociation experiment procedure and answer the following questions. 2- Identify which of these acids which are provided in the experiment are strong acids or weak acids and why? (look at the reaction details bax) By using the pH universal chart and solution 3- Write down the pH value for each acid. 4- Does 1 M of strong acid...
An unknown weak acid with a concentration of 0.078 M has a pH of 1.80. What is the Ka of the weak acid? O of 1 point earned 2 attempts remaining An unknown weak base with a concentration of 0.170 M has a pH of 9.96. What is the Kb of this base? O of 1 point earned 2 attempts remaining
What is the pH of a 0.0013 M Ca(OH)2 solution? Answer to 2 decimal places. A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the hydrogen ion concentration of this solution? Answer in scientific notation and be sure to include your units. (Scientific notation: Ex. 2.4 x 103 = 2.4E3) HA(aq) ↔ H+(aq) + A-(aq) A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is...
1. What is the pH of a hypoiodous acid/sodium hypoiodite buffer in which the concentration of the weak acid component is 0.129 M and the concentration of the conjugate base is 0.102 M?Ka=2.3E-11. 2. The pH of a hypoiodous acid/sodium hypoiodite buffer in which the concentration of the weak acid component is 0.140 M and the concentration of the conjugate base is 0.070 M is 10.34. Suppose 0.128 g of solid NaOH are added to 100 mL of this buffer...